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- #include <iostream>
- using namespace std;
- int pr(unsigned int a)
- {
- int div=0;
- if(a==1)
- return 1;
- if(a==2)
- return 1;
- for(int i=2; i<a/2; i++)
- if(a%i==0)
- div++;
- if(div)
- return 0;
- return 1;
- }
- int sdiv(unsigned int y)
- {
- int s=0;
- for(int i=2; i<y; i++)
- if(y%i==0)
- s=s+i;
- return s;
- }
- int main()
- {
- int n;
- cin>>n;
- for(int i=2; i<n; i++)
- {
- if(pr(sdiv(n)))
- cout<<i<<" ";
- }
- }
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